Interpeduncular Nucleus (Ipn) Neurons is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
The Interpeduncular Nucleus (IPN) is a small, rounded nucleus located in the midbrain at the base of the cerebral peduncles. It is a key component of the habenular system and receives inputs from the medial and lateral habenula. [1]
| Property | Value | [2]
|----------|-------|
| Cell Type Name | Interpeduncular Nucleus (IPN) Neurons |
| Allen Atlas ID | CS202210140_38 |
| Lineage | Neuron > GABAergic > Midbrain |
| Marker Genes | GAD1, GAD2, CHRNA4, PENK, TAC1, ETV1 |
| Brain Region | Midbrain, Interpeduncular Fossa |
| Function | Relay habenular outputs, regulate mood, pain, motivation |
| Taxonomy | ID | Name / Label |
|---|
IPN neurons are predominantly GABAergic interneurons and projection neurons. They exhibit small to medium-sized cell bodies with extensive dendritic arborization. Key marker genes include:
The IPN serves as the primary output nucleus of the habenular system:
Single-cell transcriptomic studies reveal distinct IPN neuronal subtypes:
Key differentially expressed genes include ETV1, CHRNA4, PENK, and various neuropeptide receptors.
The IPN represents a potential therapeutic target for:
The study of Interpeduncular Nucleus (Ipn) Neurons has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
References
[1] Nature Reviews Neuroscience. 2020;21(5):277-295. DOI:10.1038/s41583-020-0279-6
[2] Neuron. 2019;103(5):842-855.e5. DOI:10.1016/j.neuron.2019.05.018
[3] Biological Psychiatry. 2021;89(8):775-789. DOI:10.1016/j.biopsych.2020.11.017
[4] Journal of Neuroscience. 2018;38(26):5929-5940. DOI:10.1523/JNEUROSCI.0084-18.2018
[5] Cell Reports. 2020;31(9):107708. DOI:10.1016/j.celrep.2020.107708
[6] Brain Stimulation. 2022;15(3):712-720. DOI:10.1016/j.brs.2022.04.011
[7] Nature Neuroscience. 2017;20(12):1752-1760. DOI:10.1038/s41593-017-0021-0
[8] eLife. 2021;10:e63714. DOI:10.7554/eLife.63714